Stop-motion for looms.



T. GOODWIN 8; G. GHEETHAM.

STOP MOTION FOR LOOMS. APPLIOATION FILED HOV. 20, 1907. 1,1 31,833.Patented Mar. 16, 1915.

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THE NORRIS PETERS 60., PHOTIJ-LITHQ. WASHINGTON. D. C.

T. GOODWIN & G. GHEETHAM.

STOP MOTION FOR LOOMS.

APPLICATION FILED NOV. 20, 1907.

1,1 31,833, Patented Mar. 16, 1915.

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witnesses Inven Z01: JZ za/cz ($53 Thomas Goodwzn. (20W WWW/4A GeorgeCheeiham.

y flw a GM fliiya THE NORRIS PETERS 60.. PHOmLITHQ, WASHINGTON :7. c

T. GOODWIN & G. GHBETHAM.

STOP MOTION FOR LOOMS. APPLIOATION FILED NOV. 20, 1907.

1,131,833, Patented Mar. 16, 1915.

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ZlZiZnesses i In wen/$01 9 560W Thomas Goodwzn.

THE NORRIS PETERS c0. PHOTO-L!THO.. WASHINGTON, D. C.

WTED $TATES PATENT @FFIUE.

THOMAS GOODWIN, OF FALL RIVER, MASSACHUSETTS, AND GEORGE OHEETl-IAM, OF

TIVERTON, RHODE ISLAND, ASSIGNORS TO JAMES K. LANNING, OF BOSTON, MASSA-CHUSET'IS.

STOP-MOTION FOR LOOllIS.

To all whom it may concern:

Be it known that we, TrIoMAs Goonwnv and Gnonon GHEETHAM, citizens ofthe United States, residing at Fall River, in the county of Bristol,Commonwealth of Massachusetts, and Tiverton, in the county of Newport,State of Rhode Island, have invented an Improvement in Stop-Motions forLooms, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention relates to stop motions which, while they may be ofgeneral application, are particularly intended for use in connectionwith looms for weaving.

In order that the principles of the invention may be fully understood wehave in the accompanying drawings typified one embodiment thereof,wherein F igure 1 is a vertical transverse section of a loom whereto ourinvention is applied; Fig. 2 is a side elevation of a portion of a loomwhereto our invention is applied; Fig. 3 is a vertical transversesection on an enlarged scale of a portion of the mechanism shown inFigs. 1 and 2; Fig. a is a detail showing a portion of the shipperdevice; Fig. 5 is a plan View of the knock-off device in its relation tothe parts operative upon warp fault and weft failure; Fig. 6 is a sideelevation thereof; and Fig. 7 is a detail in elevation and verticalsection, upon a reduced scale, of a portion of the mechanism whereby theloom may be stopped upon the occurrence of either warp or weft failure.

An object of our invention is to provide a simple means for stopping theloom upon the occurrence of weft failure or a warp fault. It iscustomary to employ the lay as a cooperating element to stop the loom inthe event of a warp fault, this being frequently accomplished by movinga hunter into the path of the lay whereupon the lay impacting upon thehunter throws the shipper handle out of its retaining notch and stopsthe loom. Usually such bunter is at or near one end of the lay and theresult of the impact of the lay upon the bunter is frequently to twistthe lay, leaving a mark upon the goods. Preferably, therefore, weoperate the shipper lever upon the occurrence of either weft failure orwarp fault from a reciprocating member mounted independently of the lay.By a reciprocating Specification of Letters Patent.

Patented Mar. 16, 1915. Serial No. 403,027.

member is meant one having movement relative to the shipper lever.

Referring to the drawings, the loom is indicated at 1, it being of anysuitable construction. Herein, our invention is shown as applied to aloom of the type dlsclosed in the patent to Coldwell and G1ld ard, No.690,636, Jan. 7, 1902, although -1t w ll, of course, be apparent thatthe invention may be applied to any desired type of loom. lVhile a warpstop motion of any suitable type may be employed, herein we employ warpdrops 2 (Fig. 1) adapted to be mounted upon the warp threads 3, whichmay be suitably supported upon leasing members 4, whereby upon theoccurrence of a warp fault contact is made at one end of the warp dropswith a bar 5, an electric circuit 6 having therein a battery 7, beingcon1- pleted, the magnet 8 in said circuit being energlzed to attractthe armature 9, so that 1n the present embodiment of the invention themember 10 of the armature may be elevated. The magnet 8 and its relatedparts may be suitably disposed at any desired part of the loom, it beingherein shown as mounted upon the frame beneath the takeup mechanism.

A cloth roll of any suitable type is inclicated at 11, it being operatedin any suit able manner to take up the cloth as woven and herein bymeans of a ratchet gear 12 with the teeth whereof engages an actuatingpawl 13 herein shown as pivotally mounted at 14 upon a reciprocatorymember 15, which, in the present embodiment of the invention, is a wefthammer pivoted at 16 and adapted to be operated in any usual manner asby means of a cam 17 upon a cam shaft 18, whereby upon alternate beatsof the lay the upper portion of the weft hammer is reciprocated to feelfor the weft fork 19, so that if it be not tilted by the presence ofweft, the weft fork carrier 20 is moved upon its support to stop theloom. employ means he ein consisting of a holding pawl 21 to preventreverse movement of the cloth roll.

A shipper device of any suitable type such as that indicated in thepatent to Coldwell and Gildard may be employed, and herein is indicatedin Fig. 4 at 22, it being normally positioned in the usual notch,whereby the parts of the loom are maintained in running position, theshipper dethe frame of Preferably we vice being adapted to be actuatedto stop the loom in any suitable manner as by engagement therewith of aknock-0E device, herein represented as a lever 23, a portion thereofbeing shown in side elevation in Fig. 2 and in vertical section in Figs.1 and 3. As-indicated most clearly in Fig. 3, when the weft fork 19 isnot tilted, the weft fork carrier is moved to the right viewing saidfigure, by reason of the engagement of the weft fork by the weft hammer15, a shouldered portion 24 upon the lower side of the weft fork carrierimpinging against the knock-0E lever, thereby moving the same to stopthe loom.

Preferably we suspend the operation of the take-up mechanism upon theoccurrence of weft failure and to that end may operatively connect thetake-up mechanism in any suitable manner with the weft fork carrier.ferein for the purpose, we employ a lever 25 pivoted at 26 upon theframe-of the machine, the lower end of said lever being adapted toengage with a portion of the holding pawl 21, thereby to withdraw itfrom engagement with the ratchet gear 12 of the take-up mechanism,the-upper end of said lever 25 engaging in any suitable manner with theweft fork carrier 20, as indicated in Fig: 3, whereby upon movement ofthe carrier to the right viewing said figure the holding pawl 21 isdisengaged from the ratchet 12, thus suspending the action of thetake-up mechanism.

In order to stop the loom on the occurrence of a warp fault withoutthe-use of the lay as a coiiperating element, we employ a movable memberwhich, in the present embodiment of the invention, is the weft hammer15. Inasmuch as said weft hammer constitutes a portion of the train ofmechanism for stopping the loom in the event of weft failure, we areenabled, by using said weft hammer to stop the loom upon the occurrenceof awarp fault, greatly to simplify the parts while at the same timeovercoming the objections heretofore set forth incident upon the use ofthe lay as an element of the stop motion mechanism.

hile we may operate the shipper lever on the event of warp failure bythe use of the movable member, which herein is the weft hammer, invarious ways, in the present embodiment of the invention, we boltuponthe breast beam 27 of the loom, preferably in a manner permittingadjustment thereof, an angle iron 28 (see Figs. 1 and 3), upon thedepending portion of which is pivoted, and herein intermediate the endsthereof, a lever 29 (see Figs. 1, 3, 5, 6 and 7), one end whereof isconnected as by a. wire 30 (see Figs. 1 and 6) with the member 10 of thearmature. The opposite end of said lever. 29 has pivotally connectedthereto a swinging member 30, to which is pivotally nected at 34.- to awarp fork slide 35 mounted in any suitable manner for sliding movementupon the breast beam 27 and herein (see Figs. 3 and 7) shown as mountedin thecasting 36 having ways therein for such sliding movement of thewarp fork carrier and also for the weft fork carrier 20.

Upon the occurrence of a warpfault, contact is made by a drop 2 with thebar 5, thereby completing the circuit and actuating the magnet 8 toattract the armature 9 and elevate the member 10 thereof, so as to raisethe wire30 and elevate the end of the lever 29-connected thereto,thereby depressing the warp fork 33 from the position shown in Fig. 3into a position to be operated by any suitable moving part, whereby uponsuch operation any suitable loom stopping devices may be operated tostop'the loom.

In thepresent embodiment of the invention, the warp thread faultdetecting means i is operatively independent of the weft thread faultdetecting means. The said warp thread detecting means, which, in thepresent embodiment of the invention, in-

cludes a warp fork, may be operated in any suitable manner. Herein, weemploy, in order to simplify the mechanism and for other desirablepurposes, the cam 17 and to that end mount upon the reciprocatory memberor weft hammer 15', as most clearly shown in Figs. 1 and 3, an auxiliarymember 37 preferably disposed in substantial parallelism with the upperportion ofthe weft hammer 15 but laterally spaced therefrom, so as to beout of the path of movement of the weft fork 19 and weft fork carrier20.

When the warp fork 33 is depressed upon the occurrence of a warp fault,the preferably hooked free end thereof is brought into the path ofmovement of the auxiliary mem ber 37, the upper end whereof moves withina longitudinally slotted portion of the warp fork carrier, as indicatedmost clearly in Fig. 3, with the result that the warp fork carrier 35 ismoved horizontally upon the casting 36 toward the knock-off lever 23.The forward end of said warp fork carrier is provided, as shown in Fig.3, with an upright projecting portion 38 adapted, in the describedmovement of the warp fork carrier 35, to impinge upon the knock-0H lever23 and operate the same to stop the loom.

As most clearly indicated in Fig. 3, the lever 25 is thrown outof'operation and the holding pawl 21 of the take-up mechanism is socurved or formed that the knockoff lever may be actuated upon theoccurrence of a warp fault without interrupting the takeup mechanism. Insuch event the knock-off lever 23 is moved from the position indicatedin Fig. 3 to the right viewing said figure without movement of the Weftform carrier 20 and hence without movement of the lever 25.

By the construction described, we avoid the objection incident tomounting the arma ture of the magnet upon the knock-off lever or weftfork carrier and are enabled independently to operate the knock-offlever upon the occurrence of weft failure or warp fault. Moreover we areenabled to locate the magnet and armature at any desired part of theloom. By the employment of the weft fork hammer 15, we are enabled, ifdesired, to utilize the single cam 17 to stop the loom upon theoccurrence of either weft failure or warp fault, thereby doing away witha multiplicity of parts.

Important features of our invention are the provision of simple meanswhereby, in looms equipped with the usual weft stop mechanism,comprising a weft fork and a weft fork carrier or mounting, and meansactuated by the movement of said carrier or mounting to release or throwthe shipper handle, (particularly where the take up holdin means arealso released by or with the we 't fault caused movement of saidcarrier) the same shipper handle releasing means can be used as part ofan independently cooperative warp fault detecting and loom stoppingmechanism without affecting said weft fork carrier or take-up holdingmeans :and the provision of means Whereby, in a loom having the commonweft stop mechanism, comprising a weft fork, weft fork carrier, wefthammer lever and other usual connections, the same vibratory memberother than the lay, which in this embodiment of the invention is theweft hammer lever, is made part of the warp stop mechanism, cooperatingindependently of the weft stop mechanism and operatively independent 0fthe weft fork and weft fork carrier.

While an electrical warp stop mechanism is herein shown, it will beapparent that we are not to be restricted thereto save when expressly sostated in the claims.

Having thus described one type or embodiment of our invention, we desireit to be understood that although specific terms are employed, they areused in a descriptive and generic sense and not for purposesoflimitation, the scope of the. invention being set forth in thefollowing claims.

Claims:

1. A loom comprising a lay, a reciprocatory member mounted independentlyof the lay, a shipper device, means to retain the same in loom operatingposition, a knock-off device adapted to release the shipper device fromsaid retaining means, operative connections between said reciprocatorymember and said knock-off device, whereby the loom may be stopped uponthe occurrence of weft failure, a warp fork 33 pivoted at one end,operating lever means 29 therefor connected to said warp fork betweenits ends, and a slide for said fork constituting a connection betweensaid reciprocatory member and the knock-ofi' device, distinct from saidpreviously mentioned operative connections, whereby the loom may bestopped upon the occurrence of a warp fault, a war a stop motion properand an operative connection between the same and said lever means 29.

2. A loom comprising a lay, a weft hammer, a shipper device, means toretain the same in loom operating position, a knock-off device adaptedto release the shipper device from said retaining means, a weft fork, aWeft fork carrier therefor, whereby upon the occurrence of weft failurethe loom may be stopped, a member carried by said weft hammer and itsmotion clearing the weft fork, a normally elevated hooked warp fork, acarrier therefor, and a knock-off device, whereby the loom may bestopped upon the occurrence of a warp fault.

3. A loom comprising a lay, a weft hammer, a shipper device, means toretain the same in loom operating position, a knock-off device adaptedto release the shipper device from said retaining means, a weft fork, aweft carrier therefor, whereby upon the occurrence of weft failure theloom may be stopped, a member carried by said weft ham mer and in itsmotion not impinging upon the weft fork, a warp fork and sliding carrierconnection between said member and the knock-off device, whereby theloom may be stopped upon the occurrence of a warp fault, take-upmechanism, and means to operate the same upon the occurrence of weftfailure, the connections being such that the takeup mechanism is notinterrupted upon the occurrence of warp fault and operating means forsaid warp fork 33 including lever 29, member 31 pivoted thereto, wire30, and an armature connected to said wire.

1. In a loom comprising a lay, a shipper handle, means to retain saidshipper handle in loom operating position, means adapted upon therelease of said shipper handle to throw said shipper handle to a loomstopping position, and a shipper handle releasing device; thecombination of weft hread fault detecting and loom stopping devices, aweft hammer, a weft fork and a weft fork carrier adapted upon occurrenceof a weft thread fault to actuate said shipper handle releasing deviceand thereby to stop the loom, a warp fork 33 and a warp fork carriertherefor operatively independent of said weft fork and carrier thereforand adapted upon the occurrence of a warp thread fault to actuate saidshipper releasing device and thereby to stop the loom.

5. In a loom having a lay, a shipper handle, means to retain saidshipper handle in loom operating position, means adapted upon therelease of said shipper handle to throw said shipper handle to a loomstopping position, and a shipper handle releasing device; thecombination of weft thread faultdetecting and loom stopping devices, aweft hammer, a weft fork, a weft fork carrier adapted upon occurrence ofa weft thread fault to actuate said shipper handle releasing device andthereby to stop the loom, a warp fork 33, a warp fork carrier thereforoperatively independent of the weft fork and carrier therefor, the warpfork carrier in its movement being adapted to impinge upon the means torelease the shipper handle and connections adapted upon the occurrenceof a warp fault to bring thewarp fork into the path of movement of theweft hammer.

6. In a loom comprising a lay, a shipper handle, means to retain saidshipper handle in loom operating position, means adapted upon therelease of said shipper handle to throw said shipper handleto a loomstopping position, and a shipper handle releasing device; thecombination of weft thread fault detecting and loom stopping devices; aweft hammer, a weft fork and a weft fork carrier adapted upon occurrenceof a weft thread fault to actuate said shipper handle releasing deviceand thereby to stop the loom, a warp fork 33, a carrier therefor adaptedin its movement to operate the loom stopping mechanism, and meansadapted upon the occurrence of a warp fault to move the warp fork intothe path of movement of the weft hammer and including a magnet andarmature adapted to be energized upon the occurrence of a warp fault.

' 7. A loom comprising a lay, a reciprocatory member mountedindependently of the lay, a weft cam for reciprocating the same, ashipper device, means to retain the same in loom operating position, aknock-off device to release the shipper device from said retainingmeans, weft fault detecting means, devices cooperating therewith andwith said reciprocatory member to stop the loom upon the occurrence ofweft failure, electric warp thread fault detecting means including awarp fork, a warp fork carrier therefor, operatively independent of theweft fork and its carrier, means independent of the lay to render saidwarp fork operative or inoperative, and means also inuependent of thelay to act upon the warp fork when operatively positioned, and therebyto stop the loom upon the occurrence of weft failure.

8. A loom comprising in combination, a

?: lay, a shipper lever, means to retain said shipper handle in loomoperating position, means adapted upon the release of said shipper leverto'throw the latter to loom stopping position, a shipper lever releasingdevice, a weft hammer, a warp hammer secured thereto, a weft forkcarrier and a warp fork carrier independent of each other, a weft forkand a warp fork mounted upon said carriers respectively and adapted tobe acted upon by said weft hammer and warp hammer, and means independentof the lay of the loom for rendering said weft hammer and warp hammeroperative upon the occurrence of weft failure or warp faultrespectively.

9. A loom comprising a lay, a reciprocatory member mounted independentlyof the lay, a weft cam for reciprocating said member, a shipper devicenormally held in loom operating position, a knock-off device to releasethe shipper device, weft fault detecting means, means cooperatingtherewith and with the reciprocatory member to stop the loom upon theoccurrence of weft failure, a warp fork carrier, a warp fork pivotedthereon and having a hooked free end, means independent of the lay torender said warp fork operative or inoperative, and means alsoindependent of the lay to cooperate with said hooked end of the warpfork to stop the loom upon the occurrence of warp failure; 7

10. A loom comprising a lay, a reciprocatory member mountedindependently of the lay, a weft cam for reciprocating said member, ashipper device normally held in loom operating position, a knock-offdevice to release the shipper device, weft fault detecting meanscooperating therewith and with the reciprocatory member to stop the loomupon the occurrence of weft failure, a sliding warp fork carrier, a warpfork mounted thereon and having a free end directed toward the breastbeam of the loom, and means to engage said warp fork upon the occurrenceof warp fault to stop the loom.

11. A loom comprising a lay, a reciprocatory member mountedindependently of the lay, a weftcam for reciprocating said member, ashipper device normally held in loom operating position, a knock-ohdevice to release the shipper device, weft fault detecting means, meanscooperating therewith and with the reciprocatory member to stop the loomupon the occurrence of weft failure, a warp fork carrier, a warp forkmounted thereon, and means cooperating with said warp fork to pull saidfork and its carrier toward the breast beam upon the occurrence of warpfault, thereby to stop the loom.

12. A loom comprising a lay, a reciprocatory member mountedindependently of the lay, a weft cam for reciprocating said member, ashipper device normally held in loom operating position, a knock-0Edevice to release the shipper device, weft fault detecting means, meanscooperating therewith and with the reciprocatory member to stop the loomupon the occurrence of weft failure, a warp fork carrier slidinglymounted upon the breast beam of the loom, a warp fork pivoted upon saidcarrier and having a hooked free end directed toward the breast beam,and means independent of the lay and adapted to engage with said hookedfree end of the warp fork upon the occurrence of warp fault to pull saidwarp fork and its carrier in a direction toward the knock-off device,thereby to stop the loom.

13. A loom stopping mechanism comprising in combination the followingparts, cam shaft 18 having cam 17, weft hammer 15, a

weft fork carrier and weft fork, a warp fork carrier and warp fork,extensions 15 and 37 cooperating therewith respectively, a magnet andarmature, means connecting said armature to said warp fork, and anelectric circuit including said magnet and adapted to be closed on theoccurrence of warp fault.

In testimony whereof, we have signed our names to this specification, inthe presence of two subscribing witnesses.

THOMAS GOODWIN. GEORGE CHEETHAM.

WVitnesses:

NICHOLAS HATHEWAY, J12, RICHARD PACKER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of ZPatents, Washington, D. 0.

